<template>
	<!-- 解决闪烁问题 -->
	<view v-if="goods_info.goods_name" class="goods-detail">
		<!-- 上方轮播大图 -->
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" circular="true">
			<swiper-item v-for="(item, index) in goods_info.pics" :key="index">
				<image :src="item.pics_big" @click="preview(index)"></image>
			</swiper-item>
		</swiper>
		
		<!-- 商品主要信息区 -->
		<view class="goods-info-box">
			<!-- 价格 -->
			<view class="price">￥{{goods_info.goods_price}}</view>
			<!-- 信息主体 -->
			<view class="goods-info-body">
				<!-- 左 名 -->
				<view class="goods-name">{{goods_info.goods_name}}</view>
				<!-- 右 收藏 -->
				<view class="favi">
					<uni-icons type="star" size="18" color="gray"></uni-icons>
					<text>收藏</text>
				</view>
			</view>
			<!-- 运费 -->
			<view class="yf">快递：免运费</view>
		</view>
		
		
		<!-- rich-text -->
		<rich-text :nodes="goods_info.goods_introduce"></rich-text>
		
		
		<!-- 购买等导航组件区域 -->
		<view class="goods_nav">
			<uni-goods-nav :fill="true"  :options="options" :buttonGroup="buttonGroup"  @click="onClick" @buttonClick="buttonClick" />
		</view>
	</view>
</template>

<script>
	
	import {mapState, mapMutations, mapGetters} from 'vuex'
	
	export default {
		computed: {
			...mapState('m_cart', []),
			...mapGetters('m_cart',['total'])
		},
		watch: {
			// total(newVal){
			// 	const findResult = this.options.find(x=> x.text === '购物车')
			// 	if(findResult){
			// 		findResult.info = newVal
			// 	}
			// }
			
			total: {
				// handler(){},
				handler(newVal){
						const findResult = this.options.find(x=> x.text === '购物车')
						if(findResult){
							findResult.info = newVal
							}
				},
				immediate:true
			}
		},
		data() {
			return {
				goods_info: {},
				
				options: [{
								icon: 'chat',
								text: '客服'
							}, {
								icon: 'shop',
								text: '店铺',
								// info: 2,
								infoBackgroundColor: '#007aff',
								infoColor: "#f5f5f5"
							}, {
								icon: 'cart',
								text: '购物车',
								info: 0
							}],
							buttonGroup: [{
									text: '加入购物车',
									backgroundColor: 'linear-gradient(90deg, #FFCD1E, #FF8A18)',
									color: '#fff'
								},
								{
									text: '立即购买',
									backgroundColor: 'linear-gradient(90deg, #FE6035, #EF1224)',
									color: '#fff'
								}
							],
							customButtonGroup: [{
									text: '加入购物车',
									backgroundColor: 'linear-gradient(90deg, #1E83FF, #0053B8)',
									color: '#fff'
								},
								{
									text: '立即购买',
									backgroundColor: 'linear-gradient(90deg, #60F3FF, #088FEB)',
									color: '#fff'
								}
							],
							customButtonGroup1: [{
								text: '立即购买',
								backgroundColor: 'linear-gradient(90deg, #FE6035, #EF1224)',
								color: '#fff'
							}]
			};
		},
		onLoad(options) {
			// console.log(options)
			const goods_id = options.goods_id
			this.getGoodsDetail(goods_id)
		},
		methods: {
			...mapMutations('m_cart', ['addToCart']),
			
			async getGoodsDetail(goods_id){
				const {data:res} = await uni.$http.get('/goods/detail' ,{goods_id: goods_id})
				if(res.meta.status !== 200) return uni.$showMsg()
				
				// 去掉图片间的空隙,同时解决webp图片格式ios不显示问题。
				res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g, '<img style="display:block;"').replace(/webp/g, 'jpg')
				
				this.goods_info = res.message
			},
			
			// 
			preview(index){
				uni.previewImage({
					current:index,
					urls:this.goods_info.pics.map(item=>item.pics_big)
				})
			},
			// 
			onClick(e){
				// console.log(e)
				if(e.content.text === '购物车'){
					uni.switchTab({
						url:'/pages/cart/cart'
					})
				}
			},
			// 
			buttonClick(e){
				// console.log(e)
				if(e.content.text === '加入购物车') {
					// 组织商品的信息对象
					// { goods_id, goods_name, goods_price, goods_count, goods_small_logo, goods_state }
					const goods = {
						goods_id: this.goods_info.goods_id,
						goods_name:this.goods_info.goods_name,
						goods_price: this.goods_info.goods_price,
						goods_count:1,
						goods_small_logo:this.goods_info.goods_small_logo,
						goods_state: true
					}
					// 调用addToCart方法
					this.addToCart(goods)
				}
			}
		}
	}
</script>

<style lang="scss">
	swiper{
		height: 750rpx;
		image{
			width: 100%;
			height: 100%;
		}
	}
	
	.goods-info-box{
		padding: 10px;
		.price{
			font-size: 18px;
			color: #c00000;
			margin: 10px 0;
		}
		.goods-info-body{
			display: flex;
			justify-content: space-between;
			.goods-name{
				font-size: 13px;
				margin-right: 10px;
			}
			.favi {
				width: 120px;
				font-size: 12px;
				display: flex;
				flex-direction: column;
				justify-content: center;
				align-items: center;
				border-left: 1px dotted #efefef;
				color:gray;
				
			}
		}
		.yf{
			font-size: 12px;
			color: gray;
			margin: 10px 0;
		}
		
	}
	// 
	.goods_nav{
		position: fixed;
		bottom: 0;
		left: 0;
		
		width: 100%;
	}
	
	.goods-detail{
		padding-bottom: 55px;
	}
	
</style>
